Mid-level Linux Systems Administrator / Active Top Secret

Peraton•Quantico, VA

2d•$86,000 - $138,000

About The Position

Peraton is hiring a mid-level Systems Administrator for its Federal Strategic Cyber program in Washington, DC. The role focuses on assessing and analyzing systems, software, and infrastructure to identify flaws, safety hazards, and potential improvements. The administrator reviews system designs and functionality, evaluates embedded software against requirements, and helps define requirements, designs, and tests to verify expected system performance. The role also includes documenting and presenting findings to peers, customers, and management.

Requirements

Bachelor's degree and at least 2 years of experience; an additional 4 years of experience may be substituted for the bachelor's degree.
At least 2 years of experience administering and supporting Linux systems in production environments.
Strong hands-on experience with Ubuntu Linux.
Solid understanding of Linux system administration concepts.
Proficiency with the Linux command line and common shell utilities.
Experience troubleshooting complex infrastructure issues across operating systems.
Working knowledge of TCP/IP networking, DNS, DHCP, HTTP/HTTPS, SSH, routing, firewalls, and common network troubleshooting tools.
Experience administering and troubleshooting servers in virtualized or cloud environments.
Experience with monitoring, logging, alerting, and diagnosing system health and performance issues.
Understanding of system security fundamentals, including patch management, access controls, SSH security, and vulnerability remediation.
Ability to clearly document infrastructure, configurations, troubleshooting procedures, and operational processes.
U.S. citizenship.
Active Top Secret security clearance, SCI eligibility, and ability to obtain a polygraph.

Nice To Haves

Experience with Docker and containerized applications.
Experience with Ansible or other configuration-management or automation tools.
Experience writing Bash or other shell scripts for system administration and automation.
Experience with infrastructure-as-code tools such as Terraform.
Familiarity with CI/CD concepts and tools.
Experience with cloud platforms such as AWS.
Experience administering web servers, reverse proxies, or application infrastructure such as Nginx.
Familiarity with databases and troubleshooting application/database connectivity.
Familiarity with centralized logging and monitoring platforms such as Grafana and ELK.
Experience with scripting or automation using Python.
Exposure to high-availability, load-balancing, and scalable-infrastructure concepts.

Responsibilities

Assess systems and review software to identify flaws and recommend improvements.
Examine, analyze, and test code.
Potentially work with system simulators and statistical analysis.
Review and analyze systems, platforms, applications, and interfaces to understand system design and functionality.
Identify hardware and software components responsible for safety-critical and mission-critical functionality.
Evaluate embedded software to verify requirements are implemented correctly in embedded computer designs and code, and that the code contains no embedded safety hazards.
Identify requirements, designs, and test procedures that ensure systems perform as expected.
Document analysis and identified anomalies.
Present findings to peers, customers, and management.
Administer and support Linux systems in production environments.
Troubleshoot infrastructure issues across operating systems and administer and troubleshoot servers in virtualized or cloud environments.
Monitor, log, alert on, and diagnose system health and performance issues.
Apply system security fundamentals, including patch management, access controls, SSH security, and vulnerability remediation.
Document infrastructure, configurations, troubleshooting procedures, and operational processes.